Predictive Multiscale Computational Model of Shoe-Floor Coefficient of Friction

Details

• Personal Author:
  Acharya A ; Beschorner KE ; Moghaddam SRM ; Redfern MS
• Description:
  Understanding the frictional interactions between the shoe and floor during walking is critical to prevention of slips and falls, particularly when contaminants are present. A multiscale finite element model of shoe-floor-contaminant friction was developed that takes into account the surface and material characteristics of the shoe and flooring in microscopic and macroscopic scales. The model calculates shoe-floor coefficient of friction (COF) in boundary lubrication regime where effects of adhesion friction and hydrodynamic pressures are negligible. The validity of model outputs was assessed by comparing model predictions to the experimental results from mechanical COF testing. The multiscale model estimates were linearly related to the experimental results (p < 0.0001). The model predicted 73% of variability in experimentally-measured shoe-floor-contaminant COF. The results demonstrate the potential of multiscale finite element modeling in aiding slip-resistant shoe and flooring design and reducing slip and fall injuries. [Description provided by NIOSH]
• Subjects:
  Accidental Falls Accidents Occupational Health Safety
• Keywords:
  Author Keywords: Slips And Falls Coefficient Of Friction Finite Element Modeling Floors Footwear Models Shoe-floor Friction Slips, Trips, And Falls STF Surface Properties
• ISSN:
  0021-9290
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  145-152
• Volume:
  66
• NIOSHTIC Number:
  nn:20053661
• Citation:
  J Biomech 2018 Jan; 66:145-152
• Contact Point Address:
  Kurt E. Beschorner, Department of Bioengineering, University of Pittsburgh, Benedum Engineering Hall 302, 3700 O'Hara St., Pittsburgh, PA 15261
• Email:
  beschorn@pitt.edu
• Federal Fiscal Year:
  2018
• NORA Priority Area:
  Manufacturing ; Wholesale and Retail Trade
• Performing Organization:
  University of Pittsburgh at Pittsburgh
• Peer Reviewed:
  True
• Start Date:
  20100801
• Source Full Name:
  Journal of Biomechanics
• End Date:
  20140731
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:dfc7a9eba4c5d99cffbf10b6390b0267d1bf9a57019d9d298ba148aa1b0665ea9a082eea5b6f6ddb1c957f45b6821bd4196f73a577482130d1cf83a865c710a0
• Download URL:
  https://stacks.cdc.gov/view/cdc/216378/cdc_216378_DS1.pdf
• File Type:
  [PDF - 1.35 MB ]